Difluoromethyl-trifluoromethyl sulfide, also known as sulfur hexafluoride (SF6), is a colorless, odorless, non-toxic, and non-flammable gas. It is composed of one sulfur atom and six fluorine atoms, with two of the fluorine atoms forming a difluoromethyl group and the remaining four forming a trifluoromethyl group. SF6 is widely used in the electrical industry as an insulating gas in high-voltage switchgear and transformers due to its excellent dielectric properties and high chemical stability. Additionally, it is employed as a tracer gas in atmospheric research and as a greenhouse gas in the Kyoto Protocol, given its high global warming potential.
The CAS Registry Mumber 371-72-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,7 and 1 respectively; the second part has 2 digits, 7 and 2 respectively. Calculate Digit Verification of CAS Registry Number 371-72: (5*3)+(4*7)+(3*1)+(2*7)+(1*2)=62 62 % 10 = 2 So 371-72-2 is a valid CAS Registry Number.
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